CN208876723U - A kind of flexible combination prolonged type fracture fixation device - Google Patents
A kind of flexible combination prolonged type fracture fixation device Download PDFInfo
- Publication number
- CN208876723U CN208876723U CN201820805610.2U CN201820805610U CN208876723U CN 208876723 U CN208876723 U CN 208876723U CN 201820805610 U CN201820805610 U CN 201820805610U CN 208876723 U CN208876723 U CN 208876723U
- Authority
- CN
- China
- Prior art keywords
- general part
- rivet nut
- fracture fixation
- fixation device
- fastening bolt
- 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
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- Surgical Instruments (AREA)
Abstract
The utility model discloses a kind of flexible combination prolonged type fracture fixation devices, including guide pin and the tightening casing being actively socketed on the guide pin, the tightening casing threaded one end is connected with fastening bolt, the other end is threaded with screw thread ailhead, is successively socketed with pressurization connection ring, rivet nut general part a, rivet nut general part b and drill bit connection ring from fastening bolt end to drive screw head end thereon.The cup-and-ball joint realization that the utility model passes through inter-module is flexible, reduces general part realization extension or shortening by increasing, initiative new product is provided for fracture fixation, will lead the innovation of minimally invasive new art formula.
Description
Technical field
The utility model relates to medical instruments fields, and in particular to a kind of flexible combination prolonged type fracture fixation device.
Background technique
In the processing of irregular fracture, such as pelvis front ring fracture, conventional to use Interal fixation, wound is big；And in recent years
Minimally invasive channel types screw fixation technique to occur can not be bent using straight screw, safe can not be run through, be fixed with
The bone tissue of physiology dissection curvature.
Utility model content
It, can be with to solve the above problems, the utility model provides a kind of flexible combination prolonged type fracture fixation device
Guide pin direction moderately bending inserting needle is pressed, is locked behind in-position, completes to fix.
To achieve the above object, the technical solution that the utility model is taken are as follows:
A kind of flexible combination prolonged type fracture fixation device, including guide pin and is actively socketed on tight on the guide pin
Gu casing, the tightening casing threaded one end is connected with fastening bolt, and the other end is threaded with screw thread ailhead, thereon from fastening
Bolt end is successively socketed with pressurization connection ring, rivet nut general part a, rivet nut general part b and drill bit connection ring to drive screw head end.
Preferably, the pressurization connection ring and rivet nut general part a form first cup-and-ball joint, by the strength of fastening bolt
Rivet nut general part a is transmitted to along tightening casing.
Preferably, the rivet nut general part a and rivet nut general part b forms second cup-and-ball joint.
Preferably, the drill bit connection ring is socketed in fastening as the connector between rivet nut general part and screw thread ailhead
On casing, and reaches pressurization after fastening bolt screws and stablize, inter-module non-activity.
Further, the increase and decrease of rivet nut general part can be carried out as needed, to change the total length of screw.
Further, the tightening casing uses titanium alloy material.
The utility model has the following beneficial effects:
The utility model realized by the cup-and-ball joint of inter-module it is flexible, by increase reduce general part realize extend or
Shorten, initiative new product is provided for fracture fixation, the innovation of minimally invasive new art formula will be led.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment.
Specific embodiment
In order to which the purpose of this utility model and advantage is more clearly understood, with reference to embodiments to the utility model into
Row is further described.It should be appreciated that specific embodiment described herein is only used to explain the utility model, and do not have to
In restriction the utility model.
As shown in Figure 1, the utility model embodiment provides a kind of flexible combination prolonged type fracture fixation device, including
Guide pin 7 and the tightening casing 8 being actively socketed on the guide pin 7,8 threaded one end of tightening casing are connected with fastening bolt
1, the other end is threaded with screw thread ailhead 6, is successively socketed with pressurization connection ring from fastening bolt end to drive screw head end thereon
2, rivet nut general part a3, rivet nut general part b4 and drill bit connection ring 5.The tightening casing uses titanium alloy material.
The pressurization connection ring 2 and rivet nut general part a3 forms first cup-and-ball joint, by the strength of fastening bolt along tight
Gu casing is transmitted to rivet nut general part a.
The rivet nut general part a3 and rivet nut general part b4 forms second cup-and-ball joint.
The drill bit connection ring is socketed in tightening casing as the connector between rivet nut general part and screw thread ailhead,
And reach pressurization after fastening bolt screws and stablize, inter-module non-activity.
This specific implementation can carry out as needed the increase and decrease of rivet nut general part, to change the total length of screw.
Each component is connected along tightening casing in order in this specific implementation, guide pin is internally accommodated, after fastening bolt screws
Pressure is transmitted, each component is locked；In use, fastening bolt does not screw before merging, the cup-and-ball joint between each general part can be with
Activity screws after being fully recessed into according to the guide pin radian being pre-filled with, reaches fastening various components, keeps screw whole as one
Body does not have fine motion between various components, reaches fixed effect；Screw thread ailhead is located at screw front end, has helicitic texture, screw edge
" guide pin " reduces resistance when advancing, and cancellous bone is expressed to beside screw, reduces bone loss；Guide pin is led when being placed in for screw
Xiang Yong is placed in advance before screw, is taken out before locking after screw merging.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, can also make several improvements and retouch, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (5)
1. a kind of flexible combination prolonged type fracture fixation device, which is characterized in that including guide pin (7) and be actively socketed on institute
The tightening casing (8) on guide pin (7) is stated, tightening casing (8) threaded one end is connected with fastening bolt (1), other end screw thread
Screw thread ailhead (6) are connected with, are successively socketed with pressurization connection ring (2) from fastening bolt end to drive screw head end thereon, rivet nut is led to
Appliance a (3), rivet nut general part b (4) and drill bit connection ring (5).
2. a kind of flexible combination prolonged type fracture fixation device as described in claim 1, which is characterized in that the pressurization connects
It connects ring (2) and rivet nut general part a (3) forms first cup-and-ball joint, the strength of fastening bolt is transmitted to nail along tightening casing
Body general part a.
3. a kind of flexible combination prolonged type fracture fixation device as described in claim 1, which is characterized in that the rivet nut is logical
Appliance a (3) and rivet nut general part b (4) forms second cup-and-ball joint.
4. a kind of flexible combination prolonged type fracture fixation device as described in claim 1, which is characterized in that the drill bit connects
Ring (5) is connect as the connector between rivet nut general part and screw thread ailhead (6), is socketed in tightening casing, and in fastening bolt
Reach pressurization after screwing to stablize, inter-module non-activity.
5. a kind of flexible combination prolonged type fracture fixation device as described in claim 1, which is characterized in that the adapter sleeve
Pipe uses titanium alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820805610.2U CN208876723U (en) | 2018-05-29 | 2018-05-29 | A kind of flexible combination prolonged type fracture fixation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820805610.2U CN208876723U (en) | 2018-05-29 | 2018-05-29 | A kind of flexible combination prolonged type fracture fixation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208876723U true CN208876723U (en) | 2019-05-21 |
Family
ID=66504923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820805610.2U Expired - Fee Related CN208876723U (en) | 2018-05-29 | 2018-05-29 | A kind of flexible combination prolonged type fracture fixation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208876723U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108969083A (en) * | 2018-05-29 | 2018-12-11 | 西安交通大学医学院第附属医院 | A kind of flexible combination prolonged type fracture fixation device |
-
2018
- 2018-05-29 CN CN201820805610.2U patent/CN208876723U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108969083A (en) * | 2018-05-29 | 2018-12-11 | 西安交通大学医学院第附属医院 | A kind of flexible combination prolonged type fracture fixation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190521 Termination date: 20200529 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |