CN204072286U - Femur head extractor - Google Patents
Femur head extractor Download PDFInfo
- Publication number
- CN204072286U CN204072286U CN201420617367.3U CN201420617367U CN204072286U CN 204072286 U CN204072286 U CN 204072286U CN 201420617367 U CN201420617367 U CN 201420617367U CN 204072286 U CN204072286 U CN 204072286U
- Authority
- CN
- China
- Prior art keywords
- femur head
- extractor
- vertical pole
- head extractor
- head
- 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)
- Prostheses (AREA)
Abstract
This utility model discloses a kind of femur head extractor, comprises the spiral type femur head extractor of fluting, and matching usedly with it anti-revolves steel disc; The spiral type femur head extractor of described fluting comprises cross bar and vertical pole, cross bar and vertical pole one-body molded, in the font of falling T; Twist, the head of this femur head extractor is positioned at the tip position of described vertical pole to the head of described femur head extractor; In the middle of the vertical pole of described femur head extractor, the through cross bar of longitudinal grooved forms draw-in groove, and this draw-in groove is for preventing that revolving steel disc squeezes into.This utility model is simple to operate, simple and convenient in clinical middle application, effectively increases the hold between femur head extractor and femoral head and frictional force, conveniently takes out femoral head, reduce operating time and operation technique difficulty.
Description
Technical field
This utility model belongs to clinical medicine, the medical device in bone surgery, particularly relates to a kind of connecting rod of femur head extractor.
Background technology
At present in artificial femoral head replacement or total hip replacement operation, need to use femur head extractor, femur head extractor conventional is at present spiral type, is made up of cross bar and vertical pole.Vertical pole head is tapered, is conveniently screwed into femoral head, and this structure is simple, easy to operate, but also there is obvious shortcoming: be first do not have skewing mechanism, and hold is not enough; Secondly femoral head is spongy bone, and the frictional force between femur head extractor and femoral head is not enough.Usual doctor need be torqued in cancellous bone of femoral head when using spiral type head extractor energetically to take out femoral head.In order to hold femoral head, preventing from rotating, also needing firmly to hammer head extractor or use Kirschner wire interim stabilization femoral head, therefore may cause the accidental injury of patient and operative doctor, increase operating time and operation technique difficulty.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of femur head extractor, improve the lever part of spiral type femur head extractor, simple to operate, simple and convenient in clinical middle application, hold between effective increase femur head extractor and femoral head and frictional force, conveniently take out femoral head, reduce the difficulty of operating time and operation technique.
The technical scheme that this utility model adopts for its technical problem of solution is: a kind of femur head extractor, comprises the spiral type femur head extractor of fluting, and matching usedly with it anti-revolves steel disc; The spiral type femur head extractor of described fluting comprises cross bar and vertical pole, cross bar and vertical pole one-body molded, in the font of falling T; Twist, the head of this femur head extractor is positioned at the tip position of described vertical pole to the head of described femur head extractor; In the middle of the vertical pole of described femur head extractor, the through cross bar of longitudinal grooved forms draw-in groove, and this draw-in groove can for preventing that revolving steel disc squeezes into.
As the preferred technical scheme of the present invention, the width of described draw-in groove is 2.0mm, and length is equivalent to the length of vertical pole.
As the preferred technical scheme of the present invention, the described anti-thickness revolving steel disc is 1.5mm, and width is 25mm, and length is 320mm.
As the preferred technical scheme of the present invention, the length of described vertical pole is 300mm, and wide is 15mm; The length of described cross bar is 100mm, and wide is 10mm.
Compared to the prior art, the present invention has following beneficial effect: this utility model structure is simple, simple to operate, the slotted section of vertical pole is after femur head extractor is screwed into femoral head, squeeze in draw-in groove and prevent revolving steel disc, effectively can increase the hold between head extractor and femur and frictional force, conveniently take out femoral head, reduce the difficulty of operating time and operation technique.
Accompanying drawing explanation
Fig. 1 is the front view of this utility model femur head extractor;
Fig. 2 is the side view of this utility model femur head extractor;
Fig. 3 is the upward view of this utility model femur head extractor.
In figure, description of reference numerals is as follows:
1 is femur head extractor, and 11 is heads of femur head extractor, and 12 is vertical poles, and 13 is cross bars, and 14 is draw-in grooves, and 2 is anti-ly revolve steel disc.
Detailed description of the invention
Below in conjunction with accompanying drawing, also by embodiment, the utility model is described in further detail
As shown in Figure 1, Figure 2 and Figure 3, this utility model is a kind of practical modified model femur head extractor, comprises the spiral type femur head extractor 1 of fluting, and matching usedly with it anti-revolves steel disc 2; As shown in Figure 1, femur head extractor 1 is made up of cross bar 13 and vertical pole 12, cross bar 13 and vertical pole 12 one-body molded, in the font of falling T; The length of vertical pole 12 is 300mm, and wide is 15mm; The length of cross bar 13 is 100mm, and wide is 10mm.Twist, the head 11 of this femur head extractor is positioned at the tip position of described vertical pole 12 to the head 11 of described femur head extractor; The through cross bar 13 of the middle longitudinal grooved of vertical pole 12 of spiral type femur head extractor forms draw-in groove 14, the width of this draw-in groove 14 is 2.0mm, length is equivalent to the length of vertical pole 12, for 300mm, draw-in groove 14 can revolve steel disc 2 and squeezes into for anti-, anti-ly revolves draw-in groove 14 that steel disc 2 can squeeze into femur head extractor 1 and sentences and increase hold between femur head extractor 1 and femoral head and frictional force.The described anti-thickness revolving steel disc 2 is 1.5mm, and width is 25mm, and length is 320mm.Shown material is orthopaedics and commonly uses material, can buy in the market and produce.
Concrete operation method is as follows: when needing to take out femoral head in operation, be first screwed into the spiral type femoral head head extractor 1 of fluting, when being screwed into a few, revolving steel disc 2 from being positioned at vertical pole 12 lateral symmetry position, squeezing into by draw-in groove 14 by anti-.Make anti-revolve steel disc 2 degree of depth arrive femoral head over half time, turn femur head extractor 1, takes out femoral head.
This utility model structure is simple, simple to operate, the slotted section (draw-in groove 14) of vertical pole 12 is after femur head extractor 1 is screwed into femoral head, squeeze in draw-in groove 14 and prevent revolving steel disc 2, effectively can increase the hold between femur head extractor 1 and femur and frictional force, conveniently take out femoral head, reduce the difficulty of operating time and operation technique.
Claims (4)
1. a femur head extractor, is characterized in that, comprises the spiral type femur head extractor of fluting, and matching usedly with it anti-revolves steel disc; The spiral type femur head extractor of described fluting comprises cross bar and vertical pole, cross bar and vertical pole one-body molded, in the font of falling T; Twist, the head of this femur head extractor is positioned at the tip position of described vertical pole to the head of described femur head extractor; In the middle of the vertical pole of described femur head extractor, the through cross bar of longitudinal grooved forms draw-in groove, and this draw-in groove is for preventing that revolving steel disc squeezes into.
2. femur head extractor as claimed in claim 1, it is characterized in that, the width of described draw-in groove is 2.0mm, and length is equivalent to the length of vertical pole.
3. femur head extractor as claimed in claim 1, is characterized in that, the described anti-thickness revolving steel disc is 1.5mm, and width is 25mm, and length is 320mm.
4. femur head extractor as claimed in claim 1, it is characterized in that, the length of described vertical pole is 300mm, and wide is 15mm; The length of described cross bar is 100mm, and wide is 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420617367.3U CN204072286U (en) | 2014-10-23 | 2014-10-23 | Femur head extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420617367.3U CN204072286U (en) | 2014-10-23 | 2014-10-23 | Femur head extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204072286U true CN204072286U (en) | 2015-01-07 |
Family
ID=52165058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420617367.3U Expired - Fee Related CN204072286U (en) | 2014-10-23 | 2014-10-23 | Femur head extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204072286U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110368057A (en) * | 2019-06-10 | 2019-10-25 | 浙江医院 | Percutaneous artificial femoral head replacement's device |
-
2014
- 2014-10-23 CN CN201420617367.3U patent/CN204072286U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110368057A (en) * | 2019-06-10 | 2019-10-25 | 浙江医院 | Percutaneous artificial femoral head replacement's device |
| CN110368057B (en) * | 2019-06-10 | 2021-03-30 | 浙江医院 | Percutaneous artificial femoral head replacement device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20151023 |
|
| EXPY | Termination of patent right or utility model |