CN219306792U - Improved dura mater nerve root retractor - Google Patents
Improved dura mater nerve root retractor Download PDFInfo
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- CN219306792U CN219306792U CN202223458490.9U CN202223458490U CN219306792U CN 219306792 U CN219306792 U CN 219306792U CN 202223458490 U CN202223458490 U CN 202223458490U CN 219306792 U CN219306792 U CN 219306792U
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- nerve root
- connecting part
- fixedly arranged
- movable rod
- far end
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Abstract
The utility model relates to an improved dura mater nerve root retractor, which comprises: a fixed rod; the connecting shaft is fixedly arranged at the distal end of the fixed rod; the movable rod is rotationally arranged at the far end of the connecting shaft; the connecting part is arranged at the far end of the movable rod, the connecting part is of a conical structure, and the top end of the conical structure is positioned at the far end of the connecting part; the draw hook is fixedly arranged at the far end of the connecting part; the angle adjusting mechanism is arranged at the joint of the fixed rod and the movable rod; the angle adjusting mechanism is arranged, so that the angle of the drag hook can be adjusted, different patients can be accommodated, the applicability of the device is effectively improved, and the device is simple in structure and convenient to operate; the connecting part with the reverse taper is also arranged, so that the diameter and the volume of the drag hook can be reduced, and the visual area of the device is increased.
Description
Technical Field
The utility model relates to the technical field of medical appliances, in particular to an improved dura mater nerve root retractor.
Background
The spinal surgery, especially when lumbar surgery handles intervertebral disc, the operation field is less, in order to show lumbar intervertebral disc more clearly, must pull back dura mater bag and nerve root, just can enlarge the field of vision, better show intervertebral disc, be convenient for operation, need use nerve drag hook to one side to realize showing the purpose of intervertebral disc in this operation process. In the operation process, medical staff needs to carefully control the nerve retractor in the hand so as to prevent the nerve roots and the dura mater sac from being blocked and damaged under the action of the nerve retractor.
Most of the existing nerve retractor is in a fixed right-angle or obtuse-angle hook structure, but the spine structures of different patients are different, so that the nerve retractor is easy to clamp and damage when performing operations on different patients. Therefore, the utility model provides an improved dura mater nerve root retractor, which can adjust the angle of the retractor, thereby being suitable for different patients, effectively improving the applicability of the device, and has simple structure and convenient operation.
Disclosure of Invention
The utility model aims at overcoming the defects in the prior art and providing an improved dura mater nerve root retractor.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
an improved dural nerve root retractor comprising:
a fixed rod;
the connecting shaft is fixedly arranged at the distal end of the fixed rod;
the movable rod is rotationally arranged at the far end of the connecting shaft;
the connecting part is arranged at the far end of the movable rod, the connecting part is of a conical structure, and the top end of the conical structure is positioned at the far end of the connecting part;
the draw hook is fixedly arranged at the far end of the connecting part; and
the angle adjustment mechanism, angle adjustment mechanism set up in the dead lever with the junction of movable rod, angle adjustment mechanism includes:
the upper sliding strip is fixedly arranged on the outer side of the proximal end of the movable rod along the direction perpendicular to the connecting shaft;
the lower sliding strip is fixedly arranged on the outer side of the far end of the fixed rod along the direction parallel to the upper sliding strip, and a plurality of fixed holes are uniformly formed in the top surface of the lower sliding strip;
the sliding groove is formed in the top surface of the lower sliding strip; and
the sliding block is fixedly arranged at the bottom of the upper sliding strip and is in sliding connection with the sliding groove.
Further, the upper slide bar, the lower slide bar and the chute are of concentric arc structures.
Further, the angle adjusting mechanism further includes:
the screw hole is vertically formed in the end part of the upper sliding bar, which is far away from one side of the movable rod; and
and the bolt penetrates through the screw hole and extends to the inside of the fixing hole.
Further, the fixing rod further includes:
and the handle is fixedly arranged at the proximal end of the fixed rod.
Further, the outer wall of the handle is provided with anti-skid patterns.
Further, the drag hook further comprises:
the rounding is arranged at the edge of the drag hook.
Further, the angle adjusting mechanism is adjusted within the range of 0-90 degrees.
Compared with the prior art, the utility model has the following technical effects:
the angle adjusting mechanism is arranged on the dura mater nerve root retractor, so that the angle of the retractor can be adjusted, different patients can be accommodated, the applicability of the device is effectively improved, and the device is simple in structure and convenient to operate; the conical connecting part is also arranged, so that the diameter and the volume of the drag hook can be reduced, and the visual area of the device is increased.
Drawings
FIG. 1 is a schematic diagram of the dura mater nerve root retractor of the present utility model;
FIG. 2 is an enlarged schematic view of the structure at A of the present utility model;
wherein, the reference numerals include:
a fixed rod 1; a handle 2; a connecting shaft 3; a movable rod 4; a drag hook 5; chamfering 6; a connection part 7; a slide bar 8; a lower slide 9; a chute 10; screw holes 11.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
The utility model is further described below with reference to the drawings and specific examples, which are not intended to be limiting.
Examples
Referring to fig. 1, the dural nerve root retractor of the present embodiment includes:
a fixed rod 1;
a connecting shaft 3, wherein the connecting shaft 3 is fixedly arranged at the distal end of the fixed rod 1;
a movable rod 4, wherein the movable rod 4 is rotatably arranged at the distal end of the connecting shaft 3;
the connecting part 7 is arranged at the distal end of the movable rod 4, the connecting part 7 is in a conical structure, and the top end of the conical structure is positioned at the distal end of the connecting part 7;
a drag hook 5, wherein the drag hook 5 is fixedly arranged at the distal end of the connecting part 7; and
the angle adjustment mechanism, angle adjustment mechanism set up in dead lever 1 with the junction of movable rod 4, angle adjustment mechanism includes:
an upper slide bar 8, wherein the upper slide bar 8 is fixedly arranged on the outer side of the proximal end of the movable rod 4 along the direction perpendicular to the connecting shaft 3;
the lower slide bar 9 is fixedly arranged at the outer side of the far end of the fixed rod 1 along the direction parallel to the upper slide bar 8, and a plurality of fixing holes are uniformly formed in the top surface of the lower slide bar 9;
the chute 10 is arranged on the top surface of the lower slide bar 9; and
the sliding block is fixedly arranged at the bottom of the upper sliding bar 8 and is in sliding connection with the sliding groove 10.
Referring to fig. 2, the upper sliding strip 8, the lower sliding strip 9 and the chute 10 are of concentric arc structures; the angle adjustment mechanism further includes: the screw hole 11 is vertically formed in the end part of the upper slide bar 8, which is far away from the movable rod 4; and a bolt extending through the screw hole 11 to the inside of the fixing hole; the fixing lever 1 further includes: a handle 2, the handle 2 being fixedly arranged at the proximal end of the fixing rod 1; the outer wall of the handle 2 is provided with anti-skid patterns; the drag hook 5 further comprises: the rounding 6 is arranged at the edge of the draw hook 5; the adjusting range of the angle adjusting mechanism is 0-90 degrees.
When in use, firstly, the bolt in the screw hole 11 is taken out, and then the angle between the fixed rod 1 and the movable rod 4 is adjusted according to the spine structure of a patient; during adjustment, a medical staff holds the handle 2, then rotates the movable rod 4, so that the upper slide bar 8 starts to slide along the sliding groove 10 on the top surface of the lower slide bar 9, and the movable rod 4 drives the draw hook 5 to rotate along with the sliding groove, so that the angle between the draw hook 5 and the fixed rod 1 is changed; after being adjusted to a proper position, the bolts penetrate into the screw holes 11 again, so that the bottoms of the bolts are inserted into the fixing holes at the tops of the lower slide bars 9, and the upper slide bars 8 and the lower slide bars 9 are fixed; after the adjustment is completed, the patient can be operated.
In conclusion, the angle of the hard spinal cord nerve root drag hook can be adjusted by arranging the angle adjusting mechanism, so that the hard spinal cord nerve root drag hook is suitable for different patients, the applicability of the device is effectively improved, and the hard spinal cord nerve root drag hook is simple in structure and convenient to operate; the conical connecting part 7 is also arranged, so that the diameter and the volume of the drag hook 5 can be reduced, and the visible area of the device can be increased.
The foregoing description is only illustrative of the preferred embodiments of the present utility model and is not to be construed as limiting the scope of the utility model, and it will be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present utility model, and are intended to be included within the scope of the present utility model.
Claims (7)
1. An improved dural nerve root retractor comprising:
a fixed rod (1);
a connecting shaft (3), wherein the connecting shaft (3) is fixedly arranged at the far end of the fixed rod (1);
the movable rod (4) is rotatably arranged at the far end of the connecting shaft (3);
the connecting part (7), the connecting part (7) is arranged at the far end of the movable rod (4), the connecting part (7) is in a conical structure, and the top end of the conical structure is positioned at the far end of the connecting part (7);
the draw hook (5) is fixedly arranged at the far end of the connecting part (7); and
the angle adjustment mechanism, angle adjustment mechanism set up in dead lever (1) with the junction of movable rod (4), angle adjustment mechanism includes:
an upper slide bar (8), wherein the upper slide bar (8) is fixedly arranged on the outer side of the proximal end of the movable rod (4) along the direction perpendicular to the connecting shaft (3);
the lower sliding strip (9) is fixedly arranged on the outer side of the far end of the fixed rod (1) along the direction parallel to the upper sliding strip (8), and a plurality of fixing holes are uniformly formed in the top surface of the lower sliding strip (9);
the sliding groove (10) is formed in the top surface of the lower sliding strip (9); and
the sliding block is fixedly arranged at the bottom of the upper sliding strip (8), and the sliding block is in sliding connection with the sliding groove (10).
2. The dural nerve root retractor according to claim 1, wherein the upper slide (8), the lower slide (9) and the chute (10) are of concentric arc-shaped structures.
3. The dural nerve root retractor of claim 1, wherein the angle adjustment mechanism further comprises:
the screw hole (11) is vertically formed in the end part of the upper sliding strip (8) at one side far away from the movable rod (4); and
and the bolt penetrates through the screw hole (11) and extends to the inside of the fixing hole.
4. The dural nerve root retractor according to claim 1, wherein said fixing rod (1) further comprises:
and the handle (2) is fixedly arranged at the proximal end of the fixed rod (1).
5. The dural nerve root retractor according to claim 4, wherein the outer wall of the handle (2) is provided with anti-slip patterns.
6. The dural nerve root retractor according to claim 1, wherein said retractor (5) further comprises:
the rounding (6) is arranged at the edge of the draw hook (5).
7. The dural nerve root retractor of claim 1 wherein the angular adjustment mechanism is adjustable in the range of 0 ° to 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223458490.9U CN219306792U (en) | 2022-12-23 | 2022-12-23 | Improved dura mater nerve root retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223458490.9U CN219306792U (en) | 2022-12-23 | 2022-12-23 | Improved dura mater nerve root retractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219306792U true CN219306792U (en) | 2023-07-07 |
Family
ID=87021717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223458490.9U Active CN219306792U (en) | 2022-12-23 | 2022-12-23 | Improved dura mater nerve root retractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219306792U (en) |
-
2022
- 2022-12-23 CN CN202223458490.9U patent/CN219306792U/en active Active
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