CN202589642U - Broken vertebral pedicle nail extractor - Google Patents
Broken vertebral pedicle nail extractor Download PDFInfo
- Publication number
- CN202589642U CN202589642U CN 201220238327 CN201220238327U CN202589642U CN 202589642 U CN202589642 U CN 202589642U CN 201220238327 CN201220238327 CN 201220238327 CN 201220238327 U CN201220238327 U CN 201220238327U CN 202589642 U CN202589642 U CN 202589642U
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- Prior art keywords
- broken nail
- broken
- nail
- clamping tong
- bearing pin
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Abstract
The utility model relates to a medical appliance and relates to an orthopaedic broken nail extractor, particularly to a broken vertebral pedicle nail extractor, comprising two broken nail clamping forceps arms, wherein the two broken nail clamping forceps arms are in movable connection through a hinge pin, and the hinge pin extending part of each broken nail clamping forceps arm is provided with a grab handle. The broken vertebral pedicle nail extractor is characterized in that the distance between each broken nail clamping forceps arm to the hinge pin is shorter than the distance between each grab handle to the hinge pin, and the top part of each broken nail clamping forceps arm is of an arc shape like a hook. The broken vertebral pedicle nail extractor is convenient to use, does not need to take out lots of bone mass in nail extraction, is short in nail extraction time and avoids the psychological influence on a patient caused by a broken nail retained in a patient body.
Description
Technical field
This utility model has related to a kind of medical apparatus and instruments, is specially adapted to a kind of orthopaedics and uses the broken nail withdrawing device, relates in particular to the disconnected extractor of a kind of pedicle screw.
Background technology
At present at Orthopeadic Surgery; In fixture taking-up and the implantation surgery; Often run into bone screw from nut and screw rod junction even apart from nut crack conditions at a distance, broken nail remains in the human body can cause psychological shade in various degree to patient, therefore must broken nail be taken out.Because clinically, it is a very complicated thing that broken nail takes out, and wastes time and energy, and it is time-consuming long, bigger to bone destruction to get nail.In spinal surgery, need to use pedicle screws especially;, pedicle screws in use because the effect of stress is often ruptured, broken nail is embedded in the bone; Device for taking out broken nail commonly used at present need take out a large amount of sclerotin and could take out broken nail; Increased operating time, thereby caused patient's bleeding more, caused that the post-operative infection probability strengthens.In addition, after screw is being implanted sclerotin, owing to receive the effect of bearing capacity, MSR power; No matter increase the phenomenon that screw fractures more, in this case, be when removing internal fixation; Still during internal fixation is reset, all need to take out earlier the screw of fracture, just can carry out next step operation.At this moment, how successfully to take out the screw of fracture, and the unlikely too much destruction that causes sclerotin, to the orthopedist stern challenge has been proposed.When particularly broken nail taking place, because after the elongated things such as nail of nail lid are pricked in the human body, because these elongated things do not have to supply the position of clamping; Existing medical apparatus and instruments is difficult to fast with its taking-up; Often need carry out bigger operation could take out, but because broken nail is positioned at skeleton, soft tissues such as muscle is arranged again on every side; Exposed space is limited; Apparatus commonly used such as vice or needle-nose pliers etc. have increased the taking-up difficulty again because of the nip part profile reaches the limited and very difficult effective clamping broken nail screw rod of hold more greatly, let fracture patient stand a lot of miseries extraly.
Summary of the invention
This utility model technical problem to be solved is: a kind of pedicle screws device for taking out broken nail is provided; This kind pedicle screws device for taking out broken nail need not take out a large amount of sclerotin when getting nail; Get nail time weak point, thus the discomfort of having avoided broken nail stream in the patient body, to bring to patient.
This utility model technical problem to be solved realizes through following technical scheme: a kind of pedicle of vertebral arch device for taking out broken nail of this utility model; Comprise two broken nail clamping tong arms; These two broken nail clamping tong arms are hinged into flexible connection through bearing pin; The bearing pin extension of these two broken nail clamping tong arms has lever separately respectively; It is characterized in that said two broken nail clamping tong arms to the distance of said bearing pin less than the distance of said two levers to said bearing pin, said two broken nail clamping tong arm head portions are the crotch arc shape.
This utility model is installed in the lower end that is the crotch arc shape near said two broken nail clamping tong arm head portions in said bearing pin setting, makes that said two levers are 3 times or more greater than said two broken nail clamping tong arms to the distance of said bearing pin to the distance of said bearing pin.Said two broken nail clamping tong arm head portions are sealing U type when closed.Said two broken nail clamping tong arm head portion crotch arc shape inner surfacies are provided with the striped that matches with nut.
Said two the lever tail ends of this utility model are the garden camber, form to be convenient to point two circular hole handles can holding tight in one's hands.The corresponding position, top of two circular hole handles of said two levers is provided with cross bar, and the symmetrical inwall of said cross bar is provided with anti-skidding striped.
A kind of pedicle screws device for taking out broken nail of this utility model adopts such structure, and is easy to use, need not take out a large amount of sclerotin when getting nail, gets nail time weak point, influences to outpatients mental state thereby avoided broken nail to stay in the patient body.
Description of drawings
Fig. 1 is the structural representation of this utility model.
The specific embodiment
Below in conjunction with description of drawings this utility model is done further detailed explanation: as shown in Figure 1; A kind of pedicle of vertebral arch device for taking out broken nail of present embodiment; Comprise two broken nail clamping tong arms 2; Two broken nail clamping tong arms 2 are hinged into flexible connection through bearing pin 3; The bearing pin extension of two broken nail clamping tong arms 2 has lever 6 separately respectively, and the fore-end 1 of said two broken nail clamping tong arms 2 arrives said bearing pin 3 distances to said bearing pin 3 distance much smaller than said two levers 6, and said two broken nail clamping tong arm 2 head portions 1 are the crotch arc shape.Said two broken nail clamping tong arm 2 head portions 1 are the screw thread wire casing that prepare at crotch arc shape place has with the broken nail threaded engagement.Thereby make hand-held said two levers 6; Firmly clamp two broken nail clamping tong arms 2; Regain so said two broken nail clamping tong arm 2 head portions 1 are crotch arc shape place, said two broken nail clamping tong arm head portions are the U type when closed, the broken nail head is placed U type central authorities; Make this utility model hook and grip the broken nail head and rotate, thereby easily broken nail is taken out.Increase frictional force between the screw thread wire casing that said two broken nail clamping tong arm 2 head portions 1 are crotch arc shape place preparation and the broken nail head, also the strength of pulling out on the nail head is resolved in increase, avoids skidding off from the broken nail head.Said two lever 6 tail ends of this utility model are the garden camber, form to be convenient to point two circular hole handles can holding tight in one's hands.The corresponding position, top of two circular hole handles of said two levers 6 is provided with cross bar 7, and said cross bar 7 symmetrical inwalls are provided with anti-skidding striped 8.When said two broken nail clamping tong arms 2 head portions 1 are closed, be the U type; This moment, the broken nail head placed U type central authorities; Two broken nail clamping tong arm 2 head portions 1 hook and grip the broken nail head, and the cross bar 7 that is provided with of corresponding position, the top of two circular hole handles of said two levers 6 cooperatively interacts simultaneously, and the anti-skidding striped 8 of the inwall that said cross bar 7 is symmetrical is in contact with one another; Owing to the effect of friction, play the locking effect of two broken nail clamping tong arms 2.Reduced the dynamics that finger clamps when extracting broken nail.Thereby more easily broken nail is taken out.
Although characteristic and advantage thereof to this utility model have been described a lot; Yet it is understandable that; For the person of ordinary skill of the art; Can make other a lot of corresponding changes according to the technical scheme and the technical though of this utility model, and all these change the scope of the claim protection that all should belong to this utility model.
Claims (6)
1. pedicle of vertebral arch device for taking out broken nail; Comprise two broken nail clamping tong arms; These two broken nail clamping tong arms are hinged into flexible connection through bearing pin; The bearing pin extension of these two broken nail clamping tong arms has lever separately respectively, it is characterized in that said two broken nail clamping tong arms arrive said bearing pin distance to said bearing pin distance less than said two levers, and said two broken nail clamping tong arm head portions are the crotch arc shape.
2. according to the said pedicle of vertebral arch device for taking out broken nail of claim 1; It is characterized in that said bearing pin setting is installed in the lower end that is the crotch arc shape near said two broken nail clamping tong arm head portions, make said two levers to the distance of said bearing pin greater than said two broken nail clamping tong arms to the distance of said bearing pin more than 3 times.
3. according to the said pedicle of vertebral arch device for taking out broken nail of claim 2, it is characterized in that said two broken nail clamping tong arm head portions are sealing U type when closed.
4. according to claim 2 or 3 said pedicle of vertebral arch device for taking out broken nail, it is characterized in that said two broken nail clamping tong arm head portion crotch arc shape inner surfacies are provided with the striped that matches with nut.
5. according to the said pedicle of vertebral arch device for taking out broken nail of claim 1, it is characterized in that said two lever tail ends are circular arc, form and be convenient to point two circular hole handles holding tight in one's hands.
6. according to the said pedicle of vertebral arch device for taking out broken nail of claim 5, it is characterized in that the corresponding position, top of two circular hole handles of said two levers, all be provided with cross bar separately, the symmetrical inwall of said cross bar is provided with anti-skidding striped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220238327 CN202589642U (en) | 2012-05-16 | 2012-05-16 | Broken vertebral pedicle nail extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220238327 CN202589642U (en) | 2012-05-16 | 2012-05-16 | Broken vertebral pedicle nail extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202589642U true CN202589642U (en) | 2012-12-12 |
Family
ID=47307226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220238327 Expired - Fee Related CN202589642U (en) | 2012-05-16 | 2012-05-16 | Broken vertebral pedicle nail extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202589642U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103126736A (en) * | 2013-02-28 | 2013-06-05 | 常熟市亨利医疗器械有限公司 | Medical nail-removing pliers |
| CN109965969A (en) * | 2017-12-27 | 2019-07-05 | 慈溪市人民医院 | Clamping equipment and its application |
-
2012
- 2012-05-16 CN CN 201220238327 patent/CN202589642U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103126736A (en) * | 2013-02-28 | 2013-06-05 | 常熟市亨利医疗器械有限公司 | Medical nail-removing pliers |
| CN109965969A (en) * | 2017-12-27 | 2019-07-05 | 慈溪市人民医院 | Clamping equipment and its application |
| CN109965969B (en) * | 2017-12-27 | 2023-05-12 | 慈溪市人民医院 | Clamping device and application thereof |
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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: 20121212 Termination date: 20130516 |