CN215079276U - Universal guider for orthopedic drilling - Google Patents
Universal guider for orthopedic drilling Download PDFInfo
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- CN215079276U CN215079276U CN202120067538.XU CN202120067538U CN215079276U CN 215079276 U CN215079276 U CN 215079276U CN 202120067538 U CN202120067538 U CN 202120067538U CN 215079276 U CN215079276 U CN 215079276U
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- guider
- sliding
- guide
- guide rod
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Abstract
The utility model relates to an orthopedic drilling universal guider, which comprises a guider sleeve and a guider cover, wherein a conical through hole is arranged in the guider sleeve, and the guider cover is arranged on the guider sleeve; a sliding groove communicated with the conical through hole is formed in the guide cover, a guide rod is installed in the sliding groove, and an axial through hole is formed in the guide rod; the guide rod is slidably fitted with the slide groove in a radial direction thereof. The utility model discloses can adjust the angle of direction according to patient's particular case in the operation to reach the best effect of operation.
Description
Technical Field
The utility model belongs to the technical field of orthopedics drilling director, concretely relates to universal director of orthopedics drilling.
Background
Drill guides are one of the common tools used in orthopedic surgery. The existing drilling guide device can only carry out positioning at a single angle, and can not carry out drilling guide at any angle, so that the operation limitation is high, and the requirement of clinical operation can not be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an orthopedic drilling universal guider to solve the limited problem of its direction angle.
The utility model discloses an universal director of orthopedics drilling is realized like this:
a universal guider for orthopedic drilling comprises a guider sleeve with a conical through hole arranged inside and a guider cover arranged on the guider sleeve;
a sliding groove communicated with the conical through hole is formed in the guide cover, a guide rod is installed in the sliding groove, and an axial through hole is formed in the guide rod;
the guide rod is slidably fitted with the slide groove in a radial direction thereof.
Furthermore, the section of the sliding groove is in an I shape, and the sliding groove comprises an upper cavity and a lower cavity communicated with the upper cavity.
Further, a sliding upper plate and a sliding middle plate are sleeved on the guide rod and are in sliding fit with the upper cavity;
the lower end of the guide rod is provided with a sliding bottom plate, and the sliding bottom plate is matched in the lower cavity;
and a compression spring sleeved on the guide rod is arranged between the sliding upper plate and the sliding middle plate.
Furthermore, a nut is installed at the top of the guide rod;
and the edges of two sides of the sliding upper plate are provided with limit side plates positioned above the guider cover.
Furthermore, the upper wall of the lower cavity is a tooth surface, and the upper surface of the sliding bottom plate is provided with fixed teeth matched with the tooth surface.
Furthermore, a scale mark is arranged on the edge of one side of the sliding groove.
Furthermore, a mounting hole is formed in the outer wall of the lower portion of the guider cover, a compression spring is arranged in the mounting hole, a marble is arranged at the outer end of the compression spring, and an annular marble groove matched with the marble is formed in the inner wall of the upper portion of the guider sleeve.
Furthermore, the outer ring surface of the lower end of the guider sleeve is provided with taper threads.
Further, a handle is arranged on one side of the guider cover.
Further, the taper angle of the taper through hole is 30-40 degrees.
After the technical scheme is adopted, the utility model discloses the beneficial effect who has does:
the utility model discloses a setting of sliding tray and cooperation guide bar wherein can adjust the angle of direction according to patient's particular case in the operation to reach the best effect of operation.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a structural diagram of the universal guider for orthopedic drilling according to the preferred embodiment of the present invention;
FIG. 2 is a top view of the universal guide for orthopedic drilling according to the preferred embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along line D-D of FIG. 2;
FIG. 4 is an enlarged view of portion A of FIG. 3;
FIG. 5 is a cross-sectional view of section E-E of FIG. 2;
FIG. 6 is a structural view of a sliding locking mechanism of the universal guider for orthopedic drilling according to the preferred embodiment of the present invention;
FIG. 7 is a top view of a guider cover of the universal guider for orthopedic drilling according to the preferred embodiment of the invention;
FIG. 8 is a cross-sectional view in the direction F-F of FIG. 7;
in the figure: the guide device comprises a guide device sleeve 1, a conical through hole 11, an annular marble groove 12, a conical thread 13, a guide device cover 2, a sliding groove 21, an upper cavity 22, a lower cavity 23, a tooth surface 24, a mounting hole 25, a handle 26, a guide rod 3, a through hole 31, a sliding bottom plate 32, a fixed tooth 33, a sliding upper plate 4, a limiting side plate 41, a sliding middle plate 5, a compression spring 6, a nut 7, a compression spring 8 and a marble 9.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 to 8, a universal guider for orthopedic drilling comprises a guider sleeve 1 with a tapered through hole 11 arranged therein, and a guider cover 2 mounted on the guider sleeve 1; the guide cover 2 is provided with a sliding groove 21 communicated with the conical through hole 11, a guide rod 3 is arranged in the sliding groove 21, and an axial through hole 31 is formed in the guide rod 3; the guide bar 3 is slidably fitted with the slide groove 21 in the radial direction thereof.
The guide bar 3 adjusts the guide angle by sliding deflection in the slide groove 21.
The guider sleeve 1 is in a conical funnel shape, the tip end of the guider sleeve is arranged downwards, the guider cover 2 is installed at the top of the guider sleeve 1, namely the lower part of the guider cover 2 extends into the guider sleeve 1 to realize the matching connection of the guider sleeve and the guider cover, the sliding groove 21 is communicated with the conical through hole 11, and a drill bit can conveniently penetrate through the through hole 31 in the guide rod 3 and drill a nail hole in the corresponding direction on the bone surface through the conical through hole 11.
The cross section of the sliding groove 21 is in an i shape, and the sliding groove 21 includes an upper chamber 22 and a lower chamber 23 communicating with the upper chamber 22. The guide rod 3 can slide and deflect in the length direction of the sliding groove 21, so that different guide angles can be adjusted to adapt to different patient conditions.
Specifically, the cross section of the sliding groove 21 in the width direction is in an i shape, the cross section in the length direction is in an arc shape, the taper and the direction of the arc shape are the same as the direction of the tapered through hole 11, so that the guide rod 3 can slide and deflect in cooperation with the angle of the tapered through hole 11, the through hole 31 is opposite to the lower end of the tapered through hole 11 all the time in the process of angle adjustment of the movable guide rod 3, and the drill bit can conveniently pass through the through hole.
The guide rod 3 is sleeved with a sliding upper plate 4 and a sliding middle plate 5, and the sliding upper plate 4 and the sliding middle plate 5 are in sliding fit with the upper cavity 22. The arrangement of the sliding upper plate 4 and the sliding middle plate 5 can guide the movement of the guide bar 3 in the sliding groove 21.
Specifically, the upper sliding plate 4 and the middle sliding plate 5 are sleeved on the guide rod 3 and can move up and down on the guide rod 3.
The lower end of the guide bar 3 is provided with a slide bottom plate 32, and the slide bottom plate 32 is fitted in the lower cavity 23.
The arrangement of the sliding bottom plate 32 can guide the movement of the guide rod 3, prevent the guide rod 3 from falling off from the sliding groove 21, and fix the position of the guide rod 3 by the matching of the upper surface of the sliding bottom plate 32 and the upper wall of the lower cavity 23.
Preferably, the slide base 32 is provided integrally with the guide bar 3.
A compression spring 6 sleeved on the guide rod 3 is arranged between the sliding upper plate 4 and the sliding middle plate 5. The compression spring 6 is provided to make the slide base 32 abut against the upper wall of the lower chamber 23 by its elastic force, thereby fixing the position of the guide bar 3.
In order to be able to limit the sliding upper plate 4, a nut 7 is mounted on the top of the guide rod 3.
Specifically, nut 7 is installed at 3 tops of guide bar, and the cooperation is in the mounting groove of 4 tops on the slip upper plate, when pushing down guide bar 3, and slip upper plate 4 can not drop from guide bar 3 because nut 7's effect, can realize the compression to compression spring 6 with the cooperation of slip medium plate 5.
In order to limit the pressing down process of the guide bar 3, both side edges of the sliding upper plate 4 are provided with limit side plates 41 located above the guide cover 2.
The limit side plates 41 are integrally provided on both sides of the slide upper plate 4, and are located above the guide cover 2 and extend to both sides of the slide groove 21.
When the guide rod 3 is pressed down, the limit side plate 41 can limit the pressing-down degree of the guide rod 3, and when the limit side plate 41 abuts against the upper surface of the guide cover 2, that is, the guide rod 3 is pressed down to the maximum degree, the sliding bottom plate 32 is separated based on the upper wall of the lower cavity 23, so that the guide rod 3 can be moved in the length direction of the sliding groove 21.
The guide rod 3 with the sliding bottom plate 32, the nut 7, the sliding upper plate 4, the sliding middle plate 5 and the compression spring 6 form a sliding locking mechanism, and the adjustment of the guide angle can be realized through the movement of the sliding locking mechanism in the sliding groove 21.
Specifically, when the guiding angle is adjusted, the nut 7 is pressed downwards, the guiding rod 3 moves downwards, the distance between the sliding upper plate 4 and the sliding middle plate 5 is reduced, the compression spring 6 contracts, the guiding rod 3 drives the sliding bottom plate 32 to move downwards, the upper surface of the sliding bottom plate is separated from the upper wall of the lower cavity 23, and therefore the guiding rod 3 can move and deflect in the length direction of the sliding groove 21, and the guiding angle is adjusted. When the nut 7 is loosened, the compression spring 6 is reset, the guide rod 3 is driven to reset upwards by the elastic force of the compression spring, the upper surface of the sliding bottom plate 32 is abutted against the upper wall of the lower cavity 23, the guide rod 3 cannot slide, and the position of the guide rod 3 can be fixed.
In order to ensure the stability of the position fixing of the guide rod 3, the upper wall of the lower cavity 23 is a tooth surface 24, and the upper surface of the sliding bottom plate 32 is provided with a fixed tooth 33 matched with the tooth surface 24.
When the nut 7 and the guide rod 3 are pressed down, the compression spring 6 is compressed, the fixed teeth 33 are separated from the tooth surfaces 24, the guide rod 3 can move, the nut 7 is loosened, the compression spring 6 is restored, the guide rod 3 moves upwards, the fixed teeth 33 are re-meshed with the tooth surfaces 24, and the position of the guide rod 3 is fixed.
In order to facilitate grasping a specific value of the guide angle when the guide bar 3 is adjusted, a scale mark (not shown) is provided on one side edge of the sliding groove 21.
The scale lines are provided on the upper surface of the guide cover 2, which can be more intuitive.
In order to realize the connection between the guider cover 2 and the guider sleeve 1, a mounting hole 25 is formed in the outer wall of the lower portion of the guider cover 2, a compression spring 8 is arranged in the mounting hole 25, a marble 9 is arranged at the outer end of the compression spring 8, and an annular marble groove 12 matched with the marble 9 is formed in the inner wall of the upper portion of the guider sleeve 1.
Specifically, the lower part of the guider cover 2 extends into the guider sleeve 1 and compresses the compression spring 8, the annular marble groove 12 is matched with the marble 9, the marble 9 can be clamped in the annular marble groove 12 under the elastic action of the compression spring 8 at the moment, the guider cover 2 and the guider sleeve 1 can rotate relatively, and the guider cover 2 cannot be separated from the upper end of the guider sleeve 1.
The outer ring surface of the lower end of the guider sleeve 1 is provided with a taper thread 13. The setting of tapering screw thread 13 can make things convenient for the screw hole cooperation on fixed director and the orthopedics internal fixation steel sheet.
In order to facilitate the rotation of the guide cover 2 and to select a suitable surgical angle, a handle 26 is provided at one side of the guide cover 2. The handle 26 can bring the guide cover 2 to rotate on the guide sleeve 1 at any angle.
The taper angle of the tapered through hole 11 is 30-40 degrees.
Taking the taper angle of the tapered through hole 11 as 30 ° as an example, the guide rod 3 can be deflected within the sliding groove 21 by ± 15 °, so that it is convenient to select a proper guide angle within this range according to the specific condition of the patient to achieve the best operation effect.
When the guider is used, the guider is screwed into a threaded hole of an orthopedic internal fixation steel plate through uninterrupted taper threads 13 of the guider sleeve 1, a handle 26 is held by hand, the nut 7 is pressed, the guide rod 3 moves downwards, the compression spring 6 contracts under the action of the sliding upper plate 4 and the sliding lower plate, the fixing teeth 33 of the sliding bottom plate 32 are separated from the tooth surfaces 24 on the upper wall of the lower cavity 23, the guide rod 3 can slide and deflect in the sliding groove 21, the nut 7 is loosened after a preset angle is reached, the compression spring 6 rebounds, the tooth surfaces 24 and the fixing teeth 33 are meshed in a return mode, the position of the guide rod 3 is fixed, the handle 26 is rotated at the moment, the guider cover 2 is driven to rotate on the guider sleeve 1, the direction required by an operation is selected, and at the moment, an operation drill bit can penetrate through the through hole 31 in the guide rod 3 and the taper through hole 11 to aim and pre-drill a screw hole on the bone surface.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The universal guider for orthopedic drilling is characterized by comprising a guider sleeve (1) internally provided with a conical through hole (11) and a guider cover (2) arranged on the guider sleeve (1);
a sliding groove (21) communicated with the conical through hole (11) is formed in the guide cover (2), a guide rod (3) is installed in the sliding groove (21), and an axial through hole (31) is formed in the guide rod (3);
the guide rod (3) is in sliding fit with the sliding groove (21) in the radial direction thereof.
2. The universal guide for orthopedic drilling according to claim 1, characterized in that the cross section of the sliding groove (21) is "i" shaped, and the sliding groove (21) comprises an upper cavity (22) and a lower cavity (23) communicated with the upper cavity (22).
3. The universal guider for orthopedic drilling according to claim 2, characterized in that a sliding upper plate (4) and a sliding middle plate (5) are sleeved on the guide rod (3), and the sliding upper plate (4) and the sliding middle plate (5) are in sliding fit with the upper cavity (22);
the lower end of the guide rod (3) is provided with a sliding bottom plate (32), and the sliding bottom plate (32) is matched in the lower cavity (23);
a compression spring (6) sleeved on the guide rod (3) is arranged between the sliding upper plate (4) and the sliding middle plate (5).
4. The universal guide for orthopedic drilling according to claim 3, characterized in that a nut (7) is mounted on the top of the guide rod (3);
and the edges of two sides of the sliding upper plate (4) are provided with limit side plates (41) positioned above the guider cover (2).
5. The orthopaedic drilling universal guide according to claim 3, wherein the upper wall of the lower cavity (23) is a toothed surface (24), the upper surface of the skid plate (32) being provided with fixed teeth (33) cooperating with the toothed surface (24).
6. The universal guide for orthopedic drilling according to claim 1, characterized in that a side edge of the sliding groove (21) is provided with scale lines.
7. The universal guider for orthopedic drilling according to claim 1, characterized in that the lower outer wall of the guider cover (2) is provided with a mounting hole (25), a compression spring (8) is arranged in the mounting hole (25), the outer end of the compression spring (8) is provided with a marble (9), and the upper inner wall of the guider sleeve (1) is provided with an annular marble groove (12) matched with the marble (9).
8. The universal guider for orthopedic drilling according to claim 1, characterized in that the outer ring surface of the lower end of the guider sleeve (1) is provided with a taper thread (13).
9. The universal guide for orthopedic drilling according to claim 1, characterized in that a handle (26) is provided on one side of the guide cover (2).
10. The universal guide for orthopedic drilling according to claim 1, characterized in that the taper angle of the tapered through hole (11) is 30-40 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120067538.XU CN215079276U (en) | 2021-01-11 | 2021-01-11 | Universal guider for orthopedic drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120067538.XU CN215079276U (en) | 2021-01-11 | 2021-01-11 | Universal guider for orthopedic drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215079276U true CN215079276U (en) | 2021-12-10 |
Family
ID=79323696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120067538.XU Active CN215079276U (en) | 2021-01-11 | 2021-01-11 | Universal guider for orthopedic drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215079276U (en) |
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2021
- 2021-01-11 CN CN202120067538.XU patent/CN215079276U/en active Active
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