CN202010198U - Orthopedics broken screw extracting device - Google Patents
Orthopedics broken screw extracting device Download PDFInfo
- Publication number
- CN202010198U CN202010198U CN2011200662668U CN201120066266U CN202010198U CN 202010198 U CN202010198 U CN 202010198U CN 2011200662668 U CN2011200662668 U CN 2011200662668U CN 201120066266 U CN201120066266 U CN 201120066266U CN 202010198 U CN202010198 U CN 202010198U
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- China
- Prior art keywords
- screw
- nail
- guider
- extracting device
- head
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- 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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Abstract
The utility model discloses an orthopedics broken screw extracting device and relates to the field of medical equipment for surgery, especially to devices for extracting surgical fixing pins. The broken screw extracting device comprises three portions of a drilling guider, a drill, and a spiral screw-extracting device. The guider connecting rod of the drilling guider has one end being a guider handle and the other end provided with a cliff-shaped guider head; a horizontal section of the guider head is provided with a guide hole for installing the drill; a slant section of the guider head is provided with an auxiliary positioning pin; the screw-extracting device is T-shaped; the upper end of the screw-extracting device rod is provided with a screw-extracting device handle perpendicular to the screw-extracting device rod; the lower end of the screw-extracting device rod is a screw-extracting device thread head shaped as a truncated cone; and the screw-extracting device thread head has a thread in reverse direction, i.e. left hand screw thread. The orthopedics broken screw extracting device enables accurate locating, drilling and extraction of the broken screw. The device is capable of accurately adjusting and fixing an angle of the guide hole according to the requirement of a surgical site for guaranteeing the consistence between a direction of the drill hole and a broken screw center line, thereby lightening the injury on a human body during the extraction of the screw and relieving the pain of a patient.
Description
Technical field
This utility model belongs to surgical medical equipment, particularly takes out the device of surgical fixation pin.
Background technology
Metallic screw is the fixedly apparatus of usefulness of the orthopaedics used always, during the fracture fixation of being expert at clinically, has the situation of disconnected (cunning) nail to take place often, performs the operation when disconnected (cunning) nail takes place and is forced to termination, and the process of whole fracture fixation is had to and started anew.It is a very complicated thing that disconnected (cunning) nail takes out, waste time and energy, traditional broken nail taking-up instrument is a trepan shape, gets nail weak effect, time-consuming long, bigger to bone destruction, and get nail again after needing steel plate to dismantle down fully, the green bone hole can not utilize again, and very big inconvenience is brought to whole surgery in the steel plate position of need remapping, increased the risk of iatrogenic refracture, increased operating time, patient's bleeding is more, and the postoperative infection probability strengthens.The self-control device for taking out broken nail motility that has is relatively poor, does not reach purpose easily and efficiently.
The utility model content
Use inconvenient deficiency in order to overcome existing device for taking out broken nail, this utility model provides a kind of orthopaedics device for taking out broken nail, and this orthopaedics device for taking out broken nail not only is easy to accurate location, and little to body injury in the taking-up process.
The technical scheme that its technical problem that solves this utility model adopts is: a kind of orthopaedics device for taking out broken nail, it is characterized in that: by drilling director, drill bit, spiral nail-fetching device three parts are formed, guider connecting rod one end of described drilling director is equipped with the guider head of factory's font for the guide handle other end, have on the horizontal segment of guider head the pilot hole that drill bit is used is installed, on oblique section of the guider head assist location pin is housed, described nail-fetching device is T-shaped, perpendicular nail-fetching device handle is equipped with in nail-fetching device bar upper end, the lower end is Frusto-conical nail-fetching device thread head, and its hand of spiral is that reverse thread is a left hand thread.
Described assist location pin is weldingly fixed on the guider head.
Described assist location pin is connected with the guider head thread.
Described nail-fetching device handle is a cannula-like, and the nail-fetching device handlebar is housed in the sleeve pipe.
Described Frusto-conical nail-fetching device thread head, the thread head front end is less than bore diameter 0.5-1mm, and the rear end is greater than bore diameter 1-2mm, reach 15-25mm.
Using method of the present utility model is that the pilot hole of drilling director is aimed at the broken nail head, and regulate pilot hole and broken nail fully in the same way, the drill bit of electric drill is put into pilot hole, starting electric drill holes on broken nail, thread head with the spiral nail-fetching device inserts left-handed (being rotated counterclockwise) spiral nail-fetching device in the boring then, reverse mantle fiber is carried on the back in the broken nail hole, nail-fetching device closely contacts with broken nail, because the screw thread of the thread head of spiral nail-fetching device is that left hand thread is opposite with the broken nail screw thread, broken nail can be screwed out in human body in left-handed (being rotated counterclockwise) process.Because the auxiliary locking pin of drilling director is connected with the guider head thread, it is consistent with the broken nail centrage with the direction that guarantees boring to regulate the angle that its length can regulate the fixed guide hole more convenient, accurately according to the needs of operative site, alleviate and get of the damage of nail process, alleviate patient's pain human body.
The beneficial effects of the utility model are accurately to locate, to hole, take out broken nail, this apparatus can be consistent with the broken nail centrage with the direction that guarantees boring according to the angle that the needs of operative site are regulated the fixed guide hole accurately, alleviate and get of the damage of nail process, alleviate patient's pain human body.
Description of drawings
Fig. 1 is the structural representation of drilling director in this utility model,
Fig. 2 is the structural representation of spiral nail-fetching device in this utility model,
Fig. 3 is the structural representation of another embodiment of spiral nail-fetching device in this utility model.
Among the figure, 1. guide handle, 2. guider connecting rod, 3. guider head, 4. drill bit, 5. pilot hole, 6. auxiliary locking pin, 7. nail-fetching device handle, 8. nail-fetching device bar, 9. nail-fetching device thread head, 10. nail-fetching device handlebar.
The specific embodiment
The specific embodiment of the present utility model is, as shown in the figure:
Embodiment 1, a kind of orthopaedics device for taking out broken nail, it is characterized in that: by drilling director, drill bit 4, spiral nail-fetching device three parts are formed, guider connecting rod 2 one ends of described drilling director are the guider head 3 that other 1 one ends of guide handle are equipped with factory's font, have on the horizontal segment of guider head the pilot hole 5 that drill bit is used is installed, welding assist location pin 6 on oblique section of the guider head, described nail-fetching device is T-shaped, perpendicular nail-fetching device handle 7 is equipped with in nail-fetching device bar 8 upper ends, the lower end is Frusto-conical nail-fetching device thread head 9, its hand of spiral is that reverse thread is a left hand thread, the thread head front end is less than bore diameter 0.5-1mm, the rear end is greater than bore diameter 1-2mm, reach 15-25mm.Drill bit and nail-fetching device bar use medical hard alloy steel to make in this utility model, and other parts can be made of medical stainless steel.
Claims (5)
1. orthopaedics device for taking out broken nail, it is characterized in that: form by drilling director, drill bit, spiral nail-fetching device three parts, guider connecting rod one end of described drilling director is equipped with the guider head of factory's font for the guide handle other end, have on the horizontal segment of guider head the pilot hole that drill bit is used is installed, on oblique section of the guider head assist location pin is housed, described nail-fetching device is T-shaped, perpendicular nail-fetching device handle is equipped with in nail-fetching device bar upper end, the lower end is Frusto-conical nail-fetching device thread head, and its hand of spiral is that reverse thread is a left hand thread.
2. orthopaedics device for taking out broken nail according to claim 1 is characterized in that: described assist location pin is weldingly fixed on the guider head.
3. orthopaedics device for taking out broken nail according to claim 1 is characterized in that: described assist location pin is connected with the guider head thread.
4. orthopaedics device for taking out broken nail according to claim 1 is characterized in that: described nail-fetching device handle is a cannula-like, and the nail-fetching device handlebar is housed in the sleeve pipe.
5. orthopaedics device for taking out broken nail according to claim 1 is characterized in that: described Frusto-conical nail-fetching device thread head, and the thread head front end is less than bore diameter 0.5-1mm, and the rear end is greater than bore diameter 1-2mm, reach 15-25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200662668U CN202010198U (en) | 2011-03-15 | 2011-03-15 | Orthopedics broken screw extracting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200662668U CN202010198U (en) | 2011-03-15 | 2011-03-15 | Orthopedics broken screw extracting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202010198U true CN202010198U (en) | 2011-10-19 |
Family
ID=44780803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200662668U Expired - Fee Related CN202010198U (en) | 2011-03-15 | 2011-03-15 | Orthopedics broken screw extracting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202010198U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151171A (en) * | 2011-03-15 | 2011-08-17 | 平阴县人民医院 | Broken-nail extractor for orthopedics and using method thereof |
| CN107693106A (en) * | 2017-11-14 | 2018-02-16 | 于朝用 | A kind of orthopedic broken screw withdrawing device |
| CN112244987A (en) * | 2020-11-05 | 2021-01-22 | 孙金堂 | Portable bone nail taking device |
-
2011
- 2011-03-15 CN CN2011200662668U patent/CN202010198U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151171A (en) * | 2011-03-15 | 2011-08-17 | 平阴县人民医院 | Broken-nail extractor for orthopedics and using method thereof |
| CN102151171B (en) * | 2011-03-15 | 2012-09-26 | 平阴县人民医院 | Broken-nail extractor for orthopedics and using method thereof |
| CN107693106A (en) * | 2017-11-14 | 2018-02-16 | 于朝用 | A kind of orthopedic broken screw withdrawing device |
| CN112244987A (en) * | 2020-11-05 | 2021-01-22 | 孙金堂 | Portable bone nail taking device |
| CN112244987B (en) * | 2020-11-05 | 2022-09-09 | 孙金堂 | Portable bone nail taking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111019 Termination date: 20130315 |