CN211355844U - Bone cement extractor for orthopedics - Google Patents
Bone cement extractor for orthopedics Download PDFInfo
- Publication number
- CN211355844U CN211355844U CN201922378541.9U CN201922378541U CN211355844U CN 211355844 U CN211355844 U CN 211355844U CN 201922378541 U CN201922378541 U CN 201922378541U CN 211355844 U CN211355844 U CN 211355844U
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- positioning
- connecting rod
- arc
- bone cement
- shaped column
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Abstract
The utility model discloses an orthopedic bone cement extractor, which comprises a pair of positioning clamps and a pair of connecting rods, wherein the positioning clamps and the connecting rods are rotationally connected through rotating shafts, one connecting rod is rotationally connected with a positioning bolt at the top, the side wall of the connecting rod is movably connected with a positioning rod, one side of the positioning rod is rotationally connected with an arc-shaped column at the side wall of the connecting rod, one side of the arc-shaped column is fixedly connected with a positioning block, a containing groove matched with the arc-shaped column and the positioning block is arranged in the connecting rod, and the other connecting rod is fixedly connected with a positioning seat at the side wall of the connecting; through the setting of locating lever, torsional spring, increased the practicality of taking out pincers, used through the cooperation of locating lever, torsional spring, the effectual condition that takes out the pincers tip and open by oneself, close has effectually been reduced, ensures to take out pincers and can use according to medical personnel's demand, and the locating lever can not influence the normal operation of taking out pincers simultaneously, and is simple to use convenient.
Description
Technical Field
The utility model relates to a take out pincers technical field, especially relate to an orthopedic bone cement extractor.
Background
For patients with hip arthropathy or femoral head necrosis, which may be treated by hip replacement surgery, problems such as loosening or damage may occur after a period of use of the artificial joint, and revision may be performed. In the process of revision, the originally placed artificial hip joint is taken out from the acetabulum and the femoral medullary cavity, old bone cement applied between the artificial hip joint and the bone cortex in the acetabulum and the femoral medullary cavity for fixing the artificial hip joint and the bone is removed, and then a new artificial hip joint is placed in the artificial hip joint for pouring new bone cement.
And when bone cement cleared away, need fix a position its back through taking out pincers, then hit it garrulous through the instrument, nevertheless take out pincers and be difficult to fix a position it when using for take out pincers and receive the influence of gravity, long time can open by oneself, close, influence normal use, and can have the pincers tip of taking out and press from both sides tight patient's skin tissue by oneself by the influence of gravity, increased medical personnel's your work degree of difficulty, it does not have protection device to take out pincers, has delayed patient's treatment, time has been wasted.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving and exist among the prior art and when bone cement cleared away, need through taking out pincers to its location back, then hit the bits of broken glass to it through the instrument, nevertheless take out pincers and be difficult to its location when using for take out pincers and receive the influence of gravity, long can open by oneself, close, influence defects such as normal use, and the bone cement extractor for orthopedics that provides.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the bone cement extractor for the orthopedics department comprises a pair of positioning clamps and a pair of connecting rods, wherein the positioning clamps and the connecting rods are rotationally connected through rotating shafts, the top of one connecting rod is rotationally connected with a positioning bolt, the side wall of the connecting rod is movably connected with a positioning rod, one side of the positioning rod is located on the side wall of the connecting rod and is rotationally connected with an arc-shaped column, one side of the arc-shaped column is fixedly connected with a positioning block, a containing groove matched with the arc-shaped column and the positioning block is formed in the connecting rod, the side wall of the other connecting rod is fixedly connected with a positioning seat, and a positioning groove matched with;
the one end of locating lever is rotated and is connected with the embedded bearing that is located the connecting rod inside, the middle part cover of embedded bearing is equipped with the torsional spring, the outer lane of embedded bearing is connected with the connecting rod, the inner circle of embedded bearing is connected with the locating lever.
Furthermore, the inner ring inner wall of the embedded bearing is provided with internal threads, and the outer wall of the positioning bolt is provided with external threads matched with the embedded bearing for use.
Furthermore, one end of the arc-shaped column, which is far away from the positioning block, is connected with a screw rod of the positioning bolt, which is located inside the embedded bearing.
Furthermore, the top of locating piece is the fillet structure, the top of constant head tank is the fillet structure, and locating piece, constant head tank match and use.
Further, arc-shaped column, locating piece accessible positioning bolt's rotation is accomodate to the inside of accomodating the groove.
Furthermore, a pair of connecting rods are far away from the equal fixedly connected with of one end of locating clip and adjust the seat.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. through the setting of locating lever, torsional spring, increased the practicality of taking out pincers, used through the cooperation of locating lever, torsional spring, the effectual condition that takes out the pincers tip and open by oneself, close has effectually been reduced, ensures to take out pincers and can use according to medical personnel's demand, and the locating lever can not influence the normal operation of taking out pincers simultaneously, and is simple to use convenient, has reduced and has taken out the condition that the pincers tip receives the influence of gravity and presss from both sides tight patient's skin tissue by oneself.
2. Through the setting of positioning bolt, positioning seat, can fix taking out pincers, use through the cooperation of positioning bolt, positioning seat, can make to take out pincers and use and fix a position after accomplishing, not only the simple operation has reduced the damage of taking out pincers simultaneously, has increased the life who takes out pincers, has reduced medical personnel's the operation degree of difficulty, has guaranteed the smooth progress of work, has saved the time.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a schematic view of the overall structure of an orthopedic bone cement extractor of the present invention;
fig. 2 is a top cross-sectional view of the bone cement extractor for orthopedics department, which is provided by the utility model and comprises a positioning clamp, a rotating shaft, a positioning bolt, a connecting rod, an adjusting seat, a positioning rod, a containing groove, an arc-shaped column, a positioning block and a positioning groove;
FIG. 3 is an enlarged view of the portion A in FIG. 2 of the bone cement extractor for orthopedics department in accordance with the present invention;
FIG. 4 is a top cross-sectional view of the extractor arc-shaped column and the positioning block of the bone cement extractor for orthopedics according to the present invention after being stored;
FIG. 5 is an enlarged view of the portion B in FIG. 4 of the bone cement extractor for orthopedics use according to the present invention;
FIG. 6 is a side sectional view of the positioning bolt, the connecting rod, the embedded bearing and the torsion spring of the bone cement extractor for orthopedics department;
fig. 7 is a top cross-sectional view of the positioning bolt, the connecting rod and the embedded bearing of the bone cement extractor for orthopedics provided by the utility model.
In the figure: 1. positioning clips; 2. a rotating shaft; 3. positioning the bolt; 4. a connecting rod; 5. an adjusting seat; 6. positioning seats; 7. positioning a rod; 8. a receiving groove; 9. an arc-shaped column; 10. positioning blocks; 11. positioning a groove; 12. a bearing is embedded; 13. a torsion spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-7, an orthopedic bone cement extractor comprises a pair of positioning clamps 1 and a pair of connecting rods 4, the positioning clamps 1 and the connecting rods 4 are rotatably connected through a rotating shaft 2, the top of one connecting rod 4 is rotatably connected with a positioning bolt 3, the side wall of the connecting rod 4 is movably connected with a positioning rod 7, one side of the positioning rod 7, which is positioned on the side wall of the connecting rod 4, is rotatably connected with an arc-shaped column 9, the positioning rod 7 can rotate for a certain angle through the arc-shaped column 9, one side of the arc-shaped column 9 is fixedly connected with a positioning block 10, a containing groove 8 matched with the arc-shaped column 9 and the positioning block 10 is arranged in the connecting rod 4, the side wall of the other connecting rod 4 is fixedly connected with a positioning seat 6, a positioning groove 11 matched with the positioning block 10 is arranged in the positioning seat 6, the clamping of the positioning block 10 and the positioning groove 11 can fix the taking-out clamp, so that the taking-out clamp cannot open automatically due to gravity;
the one end of locating lever 7 is rotated and is connected with the embedded bearing 12 that is located connecting rod 4 inside, the middle part cover of embedded bearing 12 is equipped with torsional spring 13, torsional spring 13 is the elasticity material, receive the effort and can take place deformation, lose the effort and can resume the original state, the outer lane of embedded bearing 12 is connected with connecting rod 4, the inner circle of embedded bearing 12 is connected with locating lever 7, when taking out pincers normal use, locating lever 7 is located in the middle of a pair of connecting rod 4, make locating clip 1 be in open condition this moment, effectually avoided taking out the condition that pincers tip received gravity to influence the tight patient skin tissue of self-holding, during the use, make connecting rod 4 movable through pressing down regulation seat 5, make the one end that embedded bearing 12 was kept away from to locating lever 7 support the lateral wall of another connecting rod 4, the other end.
The inner ring inner wall of embedded bearing 12 is equipped with the internal thread, and positioning bolt 3's outer wall is equipped with the external screw thread that uses with embedded bearing 12 cooperation, and when rotatory positioning bolt 3, the accessible internal and external screw thread is fixed, has further increased the stability of arc post 9, locating piece 10.
One end of the arc-shaped column 9, which is far away from the positioning block 10, is connected with a screw rod of the positioning bolt 3, which is positioned inside the embedded bearing 12, so that the positioning bolt 3 can drive the arc-shaped column 9 and the positioning block 10 to rotate when rotating.
The top of locating piece 10 is the fillet structure, and the top of constant head tank 11 is the fillet structure, and locating piece 10, constant head tank 11 match the use, and the block of the locating piece 10 of being convenient for, constant head tank 11 is connected.
Arc post 9, locating piece 10 accessible positioning bolt 3's rotation are accomodate to the inside of accomodating groove 8, are convenient for accomodating of arc post 9, locating piece 10.
The equal fixedly connected with of one end of a pair of connecting rod 4 keeping away from the fixation clamp 1 adjusts seat 5, has improved the practicality of taking out pincers.
The utility model discloses a theory of operation and use flow:
when the taking-out forceps are normally used, the positioning rod 7 is positioned between the pair of connecting rods 4, so that the positioning clamp 1 is in an open state at the moment, the condition that the end part of the taking-out forceps is influenced by gravity to automatically clamp skin tissues of a patient is effectively avoided, when the taking-out forceps are used, the connecting rods 4 move by pressing the adjusting seat 5, one end, away from the embedded bearing 12, of the positioning rod 7 is abutted against the side wall of the other connecting rod 4, the other end of the positioning rod 7 rotates through the embedded bearing 12, the conditions that the end part of the taking-out forceps is automatically opened and closed are effectively reduced, the taking-out forceps can be used according to the requirements of medical personnel, and; after the use of taking out pincers, rotatable positioning bolt 3 for positioning bolt 3 and embedded bearing 12 pass through the rotatory arc post 9 of screw thread drive, the locating piece 10 is rotatory, makes the position department of locating piece 10 rotation to positioning seat 6, makes locating piece 10, constant head tank 11 closely laminate, thereby will use the back take out pincers location.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. An orthopedic bone cement extractor comprises a pair of positioning clamps (1) and a pair of connecting rods (4), the positioning clamp (1) and the connecting rod (4) are rotationally connected through the rotating shaft (2), it is characterized in that the top of one connecting rod (4) is rotationally connected with a positioning bolt (3), and the side wall of the connecting rod (4) is movably connected with a positioning rod (7), one side of the positioning rod (7) is positioned on the side wall of the connecting rod (4) and is rotationally connected with an arc-shaped column (9), one side of the arc-shaped column (9) is fixedly connected with a positioning block (10), a containing groove (8) matched with the arc-shaped column (9) and the positioning block (10) for use is formed in the connecting rod (4), a positioning seat (6) is fixedly connected to the side wall of the other connecting rod (4), a positioning groove (11) matched with the positioning block (10) is formed in the positioning seat (6);
the one end of locating lever (7) is rotated and is connected with and is located inside embedded bearing (12) of connecting rod (4), the middle part cover of embedded bearing (12) is equipped with torsional spring (13), the outer lane of embedded bearing (12) is connected with connecting rod (4), the inner circle of embedded bearing (12) is connected with locating lever (7).
2. The bone cement extractor for orthopedics department according to claim 1, characterized in that the inner ring inner wall of the embedded bearing (12) is provided with internal threads, and the outer wall of the positioning bolt (3) is provided with external threads used with the embedded bearing (12).
3. The bone cement extractor for orthopedics department according to claim 1, characterized in that the end of the arc-shaped column (9) far away from the positioning block (10) is connected with the screw rod of the positioning bolt (3) inside the embedded bearing (12).
4. The bone cement extractor for orthopedics department of claim 1, characterized in that the top of the locating block (10) is a round angle structure, the top of the locating groove (11) is a round angle structure, and the locating block (10) and the locating groove (11) are matched for use.
5. The bone cement extractor for orthopedics department of claim 1, characterized in that, the arc-shaped column (9) and the positioning block (10) can be received inside the receiving groove (8) through the rotation of the positioning bolt (3).
6. The bone cement extractor for orthopedics department according to claim 1, characterized in that, the end of each of a pair of connecting rods (4) far away from the positioning clamp (1) is fixedly connected with an adjusting seat (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922378541.9U CN211355844U (en) | 2019-12-25 | 2019-12-25 | Bone cement extractor for orthopedics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922378541.9U CN211355844U (en) | 2019-12-25 | 2019-12-25 | Bone cement extractor for orthopedics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211355844U true CN211355844U (en) | 2020-08-28 |
Family
ID=72159679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922378541.9U Expired - Fee Related CN211355844U (en) | 2019-12-25 | 2019-12-25 | Bone cement extractor for orthopedics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211355844U (en) |
-
2019
- 2019-12-25 CN CN201922378541.9U patent/CN211355844U/en not_active Expired - Fee Related
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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: 20200828 Termination date: 20201225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |