CN208838151U - A kind of bone nail extractor - Google Patents
A kind of bone nail extractor Download PDFInfo
- Publication number
- CN208838151U CN208838151U CN201820662802.2U CN201820662802U CN208838151U CN 208838151 U CN208838151 U CN 208838151U CN 201820662802 U CN201820662802 U CN 201820662802U CN 208838151 U CN208838151 U CN 208838151U
- Authority
- CN
- China
- Prior art keywords
- arc groove
- pressure cap
- connecting screw
- connector
- pull rod
- 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 bone nail extractors, including connector, pressure cap, connecting screw, pull rod and impact block, the connector left end is integrally formed with outer stud, the outer stud left side elevational center is equipped with arc groove, facade center is equipped with internal thread hole on the right side of the connector, by being threaded with pressure cap on the outer stud, end is equipped with arc groove on the inside of the centre bore of the pressure cap, connecting screw is movably installed in the arc groove on arc groove and outer stud on the pressure cap, the right end of the connecting screw is integrally formed with bulb, the bulb is movably arranged in the arc groove on the arc groove on pressure cap and outer stud, hexagonal prism is integrally formed on the left of the bulb, the left end outer ring of the connecting screw is equipped with external screw thread, by being threaded with pull rod in internal thread hole on the right side of the connector, pull rod right end end On be fixedly connected with block.The utility model is simple and reasonable, easy to use and operate, and low manufacture cost is practical.
Description
Technical field
The utility model relates to medical instruments, are specifically related to a kind of bone nail extractor.
Background technique
Intramedullary nail is the fracture Medullary fixation for being widely used in four limbs in recent years, and intramedullary nail is after operation is fixed, to bone
After healing, to be removed, structure is complicated for existing bone nail extractor, inconvenient for operation, with intramedullary nail junction
Connecting screw be it is fixed, it is very inconvenient when in use, for this purpose, it is proposed that a kind of bone nail extractor.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of bone nail extractors, solve existing intramedullary nail
Puller structure is complicated, and the connecting screw connecting with intramedullary nail is fixed, inconvenient problem with use.
In order to solve the above technical problems, the utility model is the following technical schemes are provided: a kind of bone nail extractor, including even
Connector, pressure cap, connecting screw, pull rod and impact block, the connector left end are integrally formed with outer stud, stand on the left of the outer stud
Face center is equipped with arc groove, and facade center is equipped with internal thread hole on the right side of the connector, by being threaded on the outer stud
The centre bore inside end of pressure cap, the pressure cap is equipped with arc groove, the circular arc on arc groove and outer stud on the pressure cap
Connecting screw is movably installed in slot, the right end of the connecting screw is integrally formed with bulb, and the bulb is movably arranged on pressure cap
On arc groove and outer stud on arc groove in, be integrally formed with hexagonal prism, the left end of the connecting screw on the left of the bulb
Outer ring is equipped with external screw thread, and the internal thread hole on the right side of the connector is interior by being threaded with pull rod, pull rod right end end
On be fixedly connected with block, be connected with impact block on the body of rod of the pull rod.
It is uniformly provided with four arc grooves respectively on the basis of above scheme, on the outer wall of the connector and impact block.
On the basis of above scheme, the connecting screw can be in the arc groove inward turning on the arc groove and outer stud on pressure cap
Turn and swings.
On the basis of above scheme, the section of the hexagonal prism is in orthohexagonal.
On the basis of above scheme, the centre bore internal diameter of the impact block is greater than the outer diameter of pull rod.
The utility model has the beneficial effect that a kind of bone nail extractor compared with prior art, using new knot
The connection between connecting screw and connector is set bulb connection by structure, and connecting screw can be rotated at random on connector
It is swung with random, in screw hole when greatly facilitating use on installation connecting screw to intramedullary nail, while also facilitating extractor tune
The angle used is saved, and the external screw thread of connecting screw is equipped with plurality of specifications model, can match according to the screw hole on intramedullary nail
The connecting screw that external screw thread is consistent with it uses, and connecting screw replacement is easy to use, and the utility model is simple and reasonable, uses
Easy to operate, low manufacture cost is practical.
Detailed description of the invention
Fig. 1 is a kind of bone nail extractor structural schematic diagram of the utility model；
Fig. 2 is a kind of connector structural schematic diagram of bone nail extractor of the utility model；
Fig. 3 is a kind of pressure cap structural schematic diagram of bone nail extractor of the utility model；
Fig. 4 is a kind of connecting screw structural schematic diagram of bone nail extractor of the utility model.
Figure label are as follows: 1- connector, 101- outer stud, 102- arc groove, 103- arc groove, 104- internal thread hole, 2-
Pressure cap, 3- connecting screw, 301- bulb, 302- hexagonal prism, 303- external screw thread, 4- pull rod, 401- block, 5- impact block.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
In the description of the present invention, it should be understood that term " longitudinal direction ", " transverse direction ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on
Orientation or positional relationship shown in the drawings is merely for convenience of description the utility model, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model
Limitation.
Referring to figs. 1 to known to Fig. 4: a kind of bone nail extractor, including connector 1, pressure cap 2, connecting screw 3,4 and of pull rod
Impact block 5,1 left end of connector are integrally formed with outer stud 101, and the outer 101 left side elevational center of stud is equipped with arc groove
102, the 1 right side facade center of connector is equipped with internal thread hole 104, by being threaded with pressure cap 2 on the outer stud 101,
End is equipped with arc groove 102 on the inside of the centre bore of the pressure cap 2, on the arc groove 102 and outer stud 101 on the pressure cap 2
Arc groove 102 in be movably installed with connecting screw 3, the right end of the connecting screw 3 is integrally formed with bulb 301, the bulb
301 are movably arranged in the arc groove 102 on arc groove 102 and outer stud 101 on pressure cap 2, the 301 left side one of bulb
Equipped with hexagonal prism 302, the left end outer ring of the connecting screw 3 is equipped with external screw thread 303, the internal screw thread on 1 right side of connector
By being threaded with pull rod 4 in hole 104, block 401, the body of rod of the pull rod 4 are fixedly connected on the 4 right end end of pull rod
On be connected with impact block 5.
Four arc grooves 103 are uniformly provided on the outer wall of the connector 1 and impact block 5 respectively, convenient for finger hold into
It is comfortably anti-skidding to the inside；The connecting screw 3 can be in the arc groove 102 on the arc groove 102 and outer stud 101 on pressure cap 2
Rotation and swing, are installed in the screw hole on intramedullary nail convenient for connecting screw 3, while connector 1 also being facilitated to adjust angle；It is described
The section of hexagonal prism 302 is in orthohexagonal, and open-end wrench easy to use turns connecting screw 3；In the centre bore of the impact block 5
Diameter is greater than the outer diameter of pull rod 4, moves on pull rod 4 convenient for impact block 5.
The principles of the present invention and advantage: a kind of bone nail extractor when in use leads to the end of connecting screw 3
It crosses in the screw hole that external screw thread 303 is screwed on intramedullary nail, first by the screw hole on one end alignment intramedullary nail of external screw thread 303, then
Connecting screw 3 is turned by hexagonal prism 302 with open-end wrench, arc groove 102 of the bulb 301 on connecting screw 3 on pressure cap 2
It rotates in the arc groove 102 on outer stud 101, after the completion of connecting screw 3 is connect by external screw thread 303 with intramedullary nail, uses
One holding is adjusted to suitable direction on the outer ring of connector 1, and by angle, due to circle of the bulb 301 on pressure cap 2
It can arbitrarily be swung in arc groove 102 on arc slot 102 and outer stud 101, so the adjusting of connector 1 angle is very convenient,
After angle is adjusted, the outer ring of impact block 5 is held with another hand, impact block 5 is moved back and forth on pull rod 4, impact block 5
Without impinging on connector 1 when mobile, impact block 5 strikes on block 401 when mobile, the band under the impact force of impact block 5 of block 401
Dynamic pull rod 4, connector 1, pressure cap 2, connecting screw 3 and intramedullary nail move together, and until intramedullary nail is removed, whole operation is simple
Convenient, in production, the model that connecting screw 3 can make multiple external screw threads 303 on multiple connecting screws 3 is different, is convenient for
The different intramedullary nail of various screw hole screw threads is matched to use, and connecting screw 3 replace it is simple and convenient, only need to be by pressure cap 2 from connection
It removes on outer stud 101 on first 1, after replacing the matched connecting screw 3 of screw thread model, is screwed on connector 1 by pressure cap 2
On outer stud 101, the utility model is simple and reasonable, easy to use and operate, low manufacture cost, is suitble to promote the use of.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (5)
1. a kind of bone nail extractor, including connector (1), pressure cap (2), connecting screw (3), pull rod (4) and impact block (5),
It is characterized by: connector (1) left end is integrally formed with outer stud (101), outer stud (101) the left side elevational center is set
Have arc groove (102), facade center is equipped with internal thread hole (104) on the right side of the connector (1), on the outer stud (101) by
It is threaded with pressure cap (2), end is equipped with arc groove (102) on the inside of the centre bore of the pressure cap (2), on the pressure cap (2)
Arc groove (102) and outer stud (101) on arc groove (102) in be movably installed with connecting screw (3), the connecting screw
(3) right end is integrally formed with bulb (301), and the bulb (301) is movably arranged on arc groove (102) on pressure cap (2) and outer
In arc groove (102) on stud (101), hexagonal prism (302), the connecting screw are integrally formed on the left of the bulb (301)
(3) left end outer ring is equipped with external screw thread (303), by being threaded in the internal thread hole (104) on the right side of the connector (1)
Pull rod (4) is fixedly connected with block (401) on pull rod (4) the right end end, is flexibly connected on the body of rod of the pull rod (4)
There are impact block (5).
2. a kind of bone nail extractor according to claim 1, which is characterized in that the connector (1) and impact block (5)
Outer wall on be uniformly provided with four arc grooves (103) respectively.
3. a kind of bone nail extractor according to claim 1, which is characterized in that the connecting screw (3) can be in pressure cap
(2) rotation and swing in the arc groove (102) on arc groove (102) and outer stud (101) on.
4. a kind of bone nail extractor according to claim 1, which is characterized in that the section of the hexagonal prism (302) is in
Orthohexagonal.
5. a kind of bone nail extractor according to claim 1, which is characterized in that in the centre bore of the impact block (5)
Diameter is greater than the outer diameter of pull rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820662802.2U CN208838151U (en) | 2018-05-06 | 2018-05-06 | A kind of bone nail extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820662802.2U CN208838151U (en) | 2018-05-06 | 2018-05-06 | A kind of bone nail extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208838151U true CN208838151U (en) | 2019-05-10 |
Family
ID=66350092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820662802.2U Expired - Fee Related CN208838151U (en) | 2018-05-06 | 2018-05-06 | A kind of bone nail extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208838151U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112847245A (en) * | 2020-12-31 | 2021-05-28 | 安徽舜禹水务股份有限公司 | Device for rapidly pulling out mold pin |
-
2018
- 2018-05-06 CN CN201820662802.2U patent/CN208838151U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112847245A (en) * | 2020-12-31 | 2021-05-28 | 安徽舜禹水务股份有限公司 | Device for rapidly pulling out mold pin |
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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: 20190510 Termination date: 20200506 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |